Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

The BECM commands the battery vent fan to high speed.
If more than 4 of these DTCs are set the drive motor generator battery sends a message to the HPCM to reduce the power use limit to 50 percent.
DTCs P0B3D, P0B42, P0B47, P0B4C, P0B51, P0B56, P0B5B, P0B60, P0B65, P0B6A, P0B6F, P0B74, P0B79, P0B7E, P0B83, P0B88, P0B8D, P0B92, P0B97, and P0B9C are Type B DTCs.